<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>06_浮动布局</title>
    <style>
    .fu {
        background-color: #ff0;
        overflow: hidden;
        width: 800px;
    }
    .fu>div {
        width: 100px;
        height: 100px;
        border: 3px solid #000;
    }
    .z1 {
        background-color: #f00;
        float: left;
        float: right;
    }
    .z2 {
        background-color: #0f0;
        float: left;
        float: right;

    }
    .z3 {
        background-color: #00f;
        float: left;
        float: right;
    }
    </style>
</head>
<body>
<div class="fu">
    <div class="z1"></div>
    <div class="z2"></div>
    <div class="z3"></div>
</div>
</body>
</html>